Electric-circuit-timing device.



R. C. LEAKE.

ELECTRIC CIRCUIT TIMING DEVICE.

APPLICATION FILED APR-17.1915- 1,155,322. I Patented Sept. 28, 1915.

@MWJM COLUMBIA PLIANOGRAPH CD.,WASHINGTON, n. C.

UNITED STATES PATENT orrron.

RICHARD C..LEAKE, oniaocnns'rnm'nnw YORK, assisnort TO GEnEaAnRAILwAYSIGNAL COMPANY, or earns, new YORK, A CORPORATION or NEWVYOBK.

ELECTRIG-CIRCUIT-TIMING DEVICE:

, Specification of Letters Patent.

Patented Sept. 28, 1915.

Application filed April 17, 1915. seria no. 21,988.

To all "whom it may concern: I g

Be it known that I, RICHARD C. 'Ln'AKE, a citizen of the United States,and a resldent of the city of Rochester, in the county of venient andaccurate adjustment and of.

maintaining said adjustmentwhen once made, and having all its partsrea'dily a'ccessible for inspection, readjustment or repairs. Y

Other objects and advantages will appear as the description of theinvention progresses, and the novel features of the'invention will beparticularly pointed out in the appended claims.

Reference is madeto the accompanying drawing forming part'of thisspecification, and which is a vertical partly sectional view of theimproved timingdevice as used for making and breaking two electriccircuits,

7 and with the segment carrying drum and the frame shown in endelevation;

upper bar 1, lower bar 2, and opposite end bars or. heads 3, connectingthem. The end bars 3, have enlargedcentral parts in which i arejournaled a shaft 4, to which is fixed.

a drum 5 in one of the peripheral grooves of which is shown ashortsegmental camplate 6, fastened by a set screw 7. The'shaft 4, mayfixedly carry any approved device such as a crank arm 8, by which theshaft and drum may be turned together. To the 7 top frame bar 1, isfastened by screws or otherwise an insulating block 9, within a facegroove'of which is fastened by abinding post 10, and a nut '11, theupper end of a contact finger 12. The 'post 10, also car'- rieswashers'13, and nuts '14, 15, for securing a circuit wire. In theillustrated arrangement" the convexed resilient contact finger 12,normally engages a fixed 'contac t 16,

which is held in a face groove of an insulat ing block 17, fixed byscrews or otherwise to the lower frame bar 2, and the finger also isadapted to leave contact 16, and engage an opposing; contact 18, whichenters a shallow groove 1n the outer face of another insulatlng block19. A binding post 20, having a faceted head entering a like shapedrecess in the insulating block 17, passes outwardly through the twoblocks 17 19, and the two contacts 16, 18, and'the block 19, has aninner recess receivinga nut 21, which had been screwed upon the threadsof binding post 20, to fasten-the contact 16, to the block 17 before theblock 19, was applied upon the inner block 17, over the contact 16. Aninsulating bushing 22, is slipped upon'the post 20,outside the nut 21,and on this bushing are placed 'a conductive bracket 23, aninsulatingsleeve 24, and a washer 25, outside of which the post 20 has a nut 26,which fastens all parts 22, 25', 24, 23, '18 and 19, while holding block19, securely to the outer face of block 17. Nash ers 27, and nuts 28,29, provide for fastening a circuit wire to the binding post 20. Therecessedhead of bracket 23, re ceives thenon-revoluble head of a bindingpost 30, having a fastening nut 31,' clamping the bracket 23, and thispost carries washers 32, and nuts 33, 34, providing for fastening acircuitwire. It is obvious thata wire held 'to binding post 20, will bein circuit 7 only with the contact 16, and that a'wire Any suitableframe may be made with held to post 30, will be in circuit only withcontact 18. The ends of the finger 12, and

contacts 16, 18, preferably have coacting platinum tips shown in thedrawing.

The ad ustable parts of the circuit timing device held to the contactfinger 12, will through the finger hole 35. Near its oppo- .site endsthe clamp has slots 42, 43, through which and the finger slots 38, 39,are passed headed adjusting screws 44, 45, respectively, These screwsare threaded into holes made in the opposite end parts of aconcavo-convex bracket 1-6, lnwing an inv-sardly projecting yoke 17, inwhich is fifxed the axle 4-8, of an insulating roller 19, which normallyenters that groove of the drum in which the plate 6, is fastened. Thecentral back part of the bracket 46, is bulged outward to give a rockingbearing of the bracket on the inner face of the contact finger 12, nextany one 01' the finger holes 35, 3G. 37, through which the clamp pin+l-1, passes to enter a recess 50, made in said bulged rear part of thebracket and thus determine the general operative position of both theclamp 40, and bracket 16, on the contact finger 12.

The operation is as follows: When the clamp pin i1, snugly'rests in thecentral. finger hole 35, as shown in the drawing, the centers of thispin and of the roller axle -18, and of the drum shaft 4:, rangehorizontally on a line about at right angles with a vertical line whichwould pass through the cen ter of the drum shaft. It obvious that it thebracket 16, be rocked on its center bearing on the finger 12,-the roller49, will be correspondingly raised or lowered so as to stand fartherfrom or nearer to the drum plate 6, to correspondingly delay or hastenthe contact of plate 6, with the bracket roller 49, asthe drum is turnedcoiniter-clockwise from the position shown in the drawing. As the plate6, strikes the roller 1:9, and rides under it, the roller is pushedoutward there by moving thefinger. 12 from the fixed coata'ct 16, andengaging the finger with the opposed contact lS, thereby breaking oneci1= cuit through the binding post 20, and closinganother circuitthrough the binding post 30. It is obvious, that'eithcr contact 16, or18, may alone'be used for making and breaking but one correspondingcircuit. The screws 1%, -15, constitute one means for imparting theabove named rocking movement to the roller carrying bracket and securelylocking the bracket at the desired adjustment. H the screw 41, be turnedclockwise and the screw 15 be turned counter-clockwise the bracket 16,will-berocked to raise the roller 4L9, and thus delay action of. drumplate 6, upon it, and a reverse turn'ii g :ol' the screws will lower theroller to hasten action of plate 6 upon it. As the like threads of thetwo screws -t-l-, a5, may be quite fine. the roller may be very nicelyand conveniently adjusted for accurately timing the action of the drumcam-plate 6, upon it for precisely controlling one or more circuits tobe made or broken by the contact finger 12. If at any time a greaterrange of vertical adjustment of the roller be desired, the screws 1-l-,45, may be turned back in or entirely free from the bracket 16, to allowthe clamp pin 11, to be adjusted in the uppermost finger hole 36, thusbodily raising the clamp and bracket and roller to assure longer delayof action of the drum plate 6, on the roller -19, and an adjustment ofthe clamp pin 41, in the lowermost finger hole 37, will corre spondinglyhasten engagement of the drum plate 6, with the roller. The slots 38,39, in contact finger 12, accommodate the adjust ing screws 1 1, 4:5,and permit their free rotation when the clamp pin -11, passes throughany one of the three finger holes 35, 3G, 37. \Vhen the timing devicepin 11, is in either finger hole 36, 37, the same nicety of verticaladjustment of the rocking bracket roller 19, is possible as when the pinis in the center finger hole It will be seen that all parts of thisimproved timing device are at all times fully open to inspection and areeasily accessible for adjustment without disturbing either or bothrelatively fixed contacts 16, 18, or the binding post and line wireconnections to said posts.

Although I have particularly described the construction of one physicalembodiment of myinvention, and explained the operation and principlethereof; nevertheless, I desire to have it understood that the formselected is merely illustrative, but does not exhaust the possiblephysical embodiments of the idea of means underlying my invention.

lVhat I claim as new and desire to secure by Letters Patent of theUnited States, is:

1. An electric circuit timing device comprising a contact finger, arocking part held thereto, means adjusting the rocking part relativelyto the finger, and a cam adapted to simultaneously move said mutuallyadjusted rocking part and finger for controlling one or more electriccircuits through the finger at different times predetermined by relativeadjustment of the rocking part and finger.

2. An electric circuit timing device comprising a contact finger, arocking part held thereto, means adjusting the rocking part relativelyto the finger, a drum, and a cam on the drum adapted to simultaneouslymove said mutually adjusted rocking part and lintor controlling one ormoreelectric cir- ,cuits through the finger-at different timespredetermined by relative adjustment oi the rocking partand finger.

3. An electric circuit timing derice comprising a contact finger, arocking part tut crumed thereat, means adjusting the rocking partrelatively to the fingenand a cam :adapted to simultaneously move. saidmutually adjusted rocking part and finger for controlling onefor moreelectric circuits throughthe finger at different times predetermined byrelative adjustment of the rocking part and finger; l p

at. An electric circuit timingdeviee comprising a contact'fi'ngcr, arocking part ful crumed there-at, two-screws adjusting and locking thebracket relatively to the finger,

and a cam adapted to simultaneously move said mutually adjusted rockingpart and finger for controlling one or more electric circuits throughthe finger at different times predetermined by relative adjustment ofthe rocking part and finger.

5. Anelectric circuit timing device comprising a contact finger, arocking part held thereto, an insulating roller ournaled to said rockingpart, means adjusting said rocking part and roller relatively to thefinger,

and a cam adapted by action on the roller to move said mutually adjustedrocking part and finger for controlling one or more electric circuitsthrough the finger at difierent times predetermined by relativeadjustment of the rocking part and finger.

' 6. An electric circuit timing device comprising a contact finger, arocking part held thereto, an insulating roller j ournaled to saidrocking part, means adjusting said rocking part and roller relatively tothe finger, a drum, and a cam on the drum adapted by action on theroller to move said mutually adjusted rocking part and finger forcontrolling one or more electric circuits through the finger atdiflerent times predetermined by relative adjustment of the rocking partand finger. V

7. An electric circuit timing device comprising a contact finger, arocking part fulcrumed thereat and carrying an insulating part, meansadjusting the bracket relatively to the finger, and a cam adapted tosimultaneously move said. mutually adjusted bracket and finger bypressure on the bracket insulating-part for controlling electriccircuits through the finger.

8. An electric circuit timing device comprising a contact finger, arocking part fulcrumed thereat and carrying an insulating part, twoscrews adjusting and locking the bracket relatively to the finger, and acam adapted to simultaneously move said mutually adjusted bracket andfinger bypressure on the bracket insulating part for controllingelectric circuits through the finger.

9. An electric circuit timing device comprising a contact finger, arocking bracket fulcrumed thereat, means whereby the fulcrum of saidbracket may be changed to differing points along the finger, meansadjusting the bracket relatively to the finger, and a cam adapted tosimultaneously move said mutually adjusted bracket and finger bypressure at the bracket for controlling electric circuits through thefinger. I

10. An electric circuit timing device comprising a contact finger, arocking bracket fulcrumed thereat, means whereby the fulcrum of saidbracket may be changed to differing points along the finger, two screwsadjusting and locking the bracket relatively to the finger, and a camadapted to simultaneously move said mutually adjusted bracket and fingerby pressure at the bracket for controlling electric circuits through thefinger.

11. An electric circuit timing device comprising a contact finger, aclamp thereon having a fixed pin, a bracket having a rocking engagementwith the finger and said pin, and means adjusting the bracket on itsfulcrum and correspondingly timing the engagement of the bracket by anoperating part for controlling electric circuits through the finger.

12. An electric circuit timing device comprising a contact finger, aclamp thereon having a fixed pin, a bracket having a rocking engagementwith the contact finger and said pin and two screws adjusting andlocking the bracket relatively to the finger and correspondingly timingthe engagement of the bracket by an operating part for controllingelectric circuits through the finger.

13. An electric circuit timing device comprising a contact finger, aclamp thereon having a fixed pin, a bracket having a rocking engagementwith the contact finger and said pin, and means adjusting the bracket onits fulcrum and correspondingly timing the engagement of the bracket byan operating part for controlling electric circuits through the finger,said finger having a plurality of holes through any one of which theclamp pin may pass, whereby the fulcrum of the rocking bracket maybechanged for varying the normal position of the bracket relatively tosaid operating part.

14:. An electric circuit timingdevice comprising a contact finger,'aclamp thereon having a fixed pin, a bracket having a rocking engagementwith the contact finger and said pin, and two screws adjusting andlocking the bracket relatively to the finger and correspondingly timingthe engagement of the bracket by an operating part for controllingelectric circuits through the finger, said fingerhaving a plurality ofholes through any one of which the clamp pin may pass whereby thefulcrum of the rock- RICHARD C. LEAKE.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

. Washington, D. 0.

